Finding the Fourth Proportional to 1,492.42, 2,057.58 and 1,284.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,492.42 : 2,057.58 = 1,284.83 : x
2. Step 2: Convert to fraction form
   1,492.42/2,057.58 = 1,284.83/x
3. Step 3: Cross multiply
   1,492.42x = 2,057.58 × 1,284.83
4. Step 4: Simplify right side
   1,492.42x = 2,643,630.22
5. Step 5: Solve for x
   x = 2,643,630.22/1,492.42
6. Step 6: Final answer
   x = 1,771.37